hg/html~html4j: json/src/main/java/org/netbeans/html/json/impl/ModelProcessor.java@4c40ceb185e5

     1 /**

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.

     5  *

     6  * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

     7  * Other names may be trademarks of their respective owners.

     8  *

     9  * The contents of this file are subject to the terms of either the GNU

    10  * General Public License Version 2 only ("GPL") or the Common

    11  * Development and Distribution License("CDDL") (collectively, the

    12  * "License"). You may not use this file except in compliance with the

    13  * License. You can obtain a copy of the License at

    14  * http://www.netbeans.org/cddl-gplv2.html

    15  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

    16  * specific language governing permissions and limitations under the

    17  * License.  When distributing the software, include this License Header

    18  * Notice in each file and include the License file at

    19  * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

    20  * particular file as subject to the "Classpath" exception as provided

    21  * by Oracle in the GPL Version 2 section of the License file that

    22  * accompanied this code. If applicable, add the following below the

    23  * License Header, with the fields enclosed by brackets [] replaced by

    24  * your own identifying information:

    25  * "Portions Copyrighted [year] [name of copyright owner]"

    26  *

    27  * Contributor(s):

    28  *

    29  * The Original Software is NetBeans. The Initial Developer of the Original

    30  * Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.

    31  *

    32  * If you wish your version of this file to be governed by only the CDDL

    33  * or only the GPL Version 2, indicate your decision by adding

    34  * "[Contributor] elects to include this software in this distribution

    35  * under the [CDDL or GPL Version 2] license." If you do not indicate a

    36  * single choice of license, a recipient has the option to distribute

    37  * your version of this file under either the CDDL, the GPL Version 2 or

    38  * to extend the choice of license to its licensees as provided above.

    39  * However, if you add GPL Version 2 code and therefore, elected the GPL

    40  * Version 2 license, then the option applies only if the new code is

    41  * made subject to such option by the copyright holder.

    42  */

    43 package org.netbeans.html.json.impl;

    45 import java.io.IOException;

    46 import java.io.OutputStreamWriter;

    47 import java.io.StringWriter;

    48 import java.io.Writer;

    49 import java.lang.annotation.AnnotationTypeMismatchException;

    50 import java.lang.annotation.IncompleteAnnotationException;

    51 import java.lang.reflect.Method;

    52 import java.util.ArrayList;

    53 import java.util.Arrays;

    54 import java.util.Collection;

    55 import java.util.Collections;

    56 import java.util.HashMap;

    57 import java.util.HashSet;

    58 import java.util.LinkedHashSet;

    59 import java.util.List;

    60 import java.util.Map;

    61 import java.util.ResourceBundle;

    62 import java.util.Set;

    63 import java.util.WeakHashMap;

    64 import java.util.logging.Level;

    65 import java.util.logging.Logger;

    66 import javax.annotation.processing.AbstractProcessor;

    67 import javax.annotation.processing.Completion;

    68 import javax.annotation.processing.Completions;

    69 import javax.annotation.processing.ProcessingEnvironment;

    70 import javax.annotation.processing.Processor;

    71 import javax.annotation.processing.RoundEnvironment;

    72 import javax.annotation.processing.SupportedAnnotationTypes;

    73 import javax.annotation.processing.SupportedSourceVersion;

    74 import javax.lang.model.SourceVersion;

    75 import javax.lang.model.element.AnnotationMirror;

    76 import javax.lang.model.element.AnnotationValue;

    77 import javax.lang.model.element.Element;

    78 import javax.lang.model.element.ElementKind;

    79 import javax.lang.model.element.ExecutableElement;

    80 import javax.lang.model.element.Modifier;

    81 import javax.lang.model.element.PackageElement;

    82 import javax.lang.model.element.TypeElement;

    83 import javax.lang.model.element.VariableElement;

    84 import javax.lang.model.type.ArrayType;

    85 import javax.lang.model.type.DeclaredType;

    86 import javax.lang.model.type.MirroredTypeException;

    87 import javax.lang.model.type.TypeKind;

    88 import javax.lang.model.type.TypeMirror;

    89 import javax.lang.model.util.Elements;

    90 import javax.lang.model.util.Types;

    91 import javax.tools.Diagnostic;

    92 import javax.tools.FileObject;

    93 import net.java.html.json.ComputedProperty;

    94 import net.java.html.json.Function;

    95 import net.java.html.json.Model;

    96 import net.java.html.json.ModelOperation;

    97 import net.java.html.json.OnPropertyChange;

    98 import net.java.html.json.OnReceive;

    99 import net.java.html.json.Property;

   100 import org.openide.util.lookup.ServiceProvider;

   102 /** Annotation processor to process {@link Model @Model} annotations and

   103  * generate appropriate model classes.

   104  *

   105  * @author Jaroslav Tulach

   106  */

   107 @ServiceProvider(service=Processor.class)

   108 @SupportedSourceVersion(SourceVersion.RELEASE_6)

   109 @SupportedAnnotationTypes({

   110     "net.java.html.json.Model",

   111     "net.java.html.json.ModelOperation",

   112     "net.java.html.json.Function",

   113     "net.java.html.json.OnReceive",

   114     "net.java.html.json.OnPropertyChange",

   115     "net.java.html.json.ComputedProperty",

   116     "net.java.html.json.Property"

   117 })

   118 public final class ModelProcessor extends AbstractProcessor {

   119     private static final Logger LOG = Logger.getLogger(ModelProcessor.class.getName());

   120     private final Map<Element,String> models = new WeakHashMap<Element,String>();

   121     private final Map<Element,Prprt[]> verify = new WeakHashMap<Element,Prprt[]>();

   122     @Override

   123     public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

   124         boolean ok = true;

   125         for (Element e : roundEnv.getElementsAnnotatedWith(Model.class)) {

   126             if (!processModel(e)) {

   127                 ok = false;

   128             }

   129         }

   130         if (roundEnv.processingOver()) {

   131             models.clear();

   132             for (Map.Entry<Element, Prprt[]> entry : verify.entrySet()) {

   133                 TypeElement te = (TypeElement)entry.getKey();

   134                 String fqn = te.getQualifiedName().toString();

   135                 Element finalElem = processingEnv.getElementUtils().getTypeElement(fqn);

   136                 if (finalElem == null) {

   137                     continue;

   138                 }

   139                 Prprt[] props;

   140                 Model m = finalElem.getAnnotation(Model.class);

   141                 if (m == null) {

   142                     continue;

   143                 }

   144                 props = Prprt.wrap(processingEnv, finalElem, m.properties());

   145                 for (Prprt p : props) {

   146                     boolean[] isModel = { false };

   147                     boolean[] isEnum = { false };

   148                     boolean[] isPrimitive = { false };

   149                     String t = checkType(p, isModel, isEnum, isPrimitive);

   150                     if (isEnum[0]) {

   151                         continue;

   152                     }

   153                     if (isPrimitive[0]) {

   154                         continue;

   155                     }

   156                     if (isModel[0]) {

   157                         continue;

   158                     }

   159                     if ("java.lang.String".equals(t)) {

   160                         continue;

   161                     }

   162                     error("The type " + t + " should be defined by @Model annotation", entry.getKey());

   163                 }

   164             }

   165             verify.clear();

   166         }

   167         return ok;

   168     }

   170     private void error(String msg, Element e) {

   171         processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, msg, e);

   172     }

   174     private boolean processModel(Element e) {

   175         boolean ok = true;

   176         Model m = e.getAnnotation(Model.class);

   177         if (m == null) {

   178             return true;

   179         }

   180         String pkg = findPkgName(e);

   181         Writer w;

   182         String className = m.className();

   183         models.put(e, className);

   184         try {

   185             StringWriter body = new StringWriter();

   186             StringBuilder onReceiveType = new StringBuilder();

   187             List<GetSet> propsGetSet = new ArrayList<GetSet>();

   188             List<Object> functions = new ArrayList<Object>();

   189             Map<String, Collection<String[]>> propsDeps = new HashMap<String, Collection<String[]>>();

   190             Map<String, Collection<String>> functionDeps = new HashMap<String, Collection<String>>();

   191             Prprt[] props = createProps(e, m.properties());

   192             final String builderPrefix = findBuilderPrefix(e, m);

   194             if (!generateComputedProperties(className, body, props, e.getEnclosedElements(), propsGetSet, propsDeps)) {

   195                 ok = false;

   196             }

   197             if (!generateOnChange(e, propsDeps, props, className, functionDeps)) {

   198                 ok = false;

   199             }

   200             if (!generateProperties(e, builderPrefix, body, className, props, propsGetSet, propsDeps, functionDeps)) {

   201                 ok = false;

   202             }

   203             if (!generateFunctions(e, body, className, e.getEnclosedElements(), functions)) {

   204                 ok = false;

   205             }

   206             int functionsCount = functions.size() / 2;

   207             for (int i = 0; i < functions.size(); i += 2) {

   208                 for (Prprt p : props) {

   209                     if (p.name().equals(functions.get(i))) {

   210                         error("Function cannot have the name of an existing property", e);

   211                         ok = false;

   212                     }

   213                 }

   214             }

   215             if (!generateReceive(e, body, className, e.getEnclosedElements(), onReceiveType)) {

   216                 ok = false;

   217             }

   218             if (!generateOperation(e, body, className, e.getEnclosedElements(), functions)) {

   219                 ok = false;

   220             }

   221             FileObject java = processingEnv.getFiler().createSourceFile(pkg + '.' + className, e);

   222             w = new OutputStreamWriter(java.openOutputStream());

   223             try {

   224                 w.append("package " + pkg + ";\n");

   225                 w.append("import net.java.html.json.*;\n");

   226                 final String inPckName = inPckName(e, false);

   227                 w.append("/** Generated for {@link ").append(inPckName).append("}*/\n");

   228                 w.append("public final class ").append(className).append(" implements Cloneable {\n");

   229                 w.append("  private static Class<").append(inPckName).append("> modelFor() { return ").append(inPckName).append(".class; }\n");

   230                 w.append("  private static final Html4JavaType TYPE = new Html4JavaType();\n");

   231                 if (m.instance()) {

   232                     int cCnt = 0;

   233                     for (Element c : e.getEnclosedElements()) {

   234                         if (c.getKind() != ElementKind.CONSTRUCTOR) {

   235                             continue;

   236                         }

   237                         cCnt++;

   238                         ExecutableElement ec = (ExecutableElement) c;

   239                         if (ec.getParameters().size() > 0) {

   240                             continue;

   241                         }

   242                         if (ec.getModifiers().contains(Modifier.PRIVATE)) {

   243                             continue;

   244                         }

   245                         cCnt = 0;

   246                         break;

   247                     }

   248                     if (cCnt > 0) {

   249                         ok = false;

   250                         error("Needs non-private default constructor when instance=true", e);

   251                         w.append("  private final ").append(inPckName).append(" instance = null;\n");

   252                     } else {

   253                         w.append("  private final ").append(inPckName).append(" instance = new ").append(inPckName).append("();\n");

   254                     }

   255                 }

   256                 w.append("  private final org.netbeans.html.json.spi.Proto proto;\n");

   257                 w.append(body.toString());

   258                 w.append("  private ").append(className).append("(net.java.html.BrwsrCtx context) {\n");

   259                 w.append("    this.proto = TYPE.createProto(this, context);\n");

   260                 for (Prprt p : props) {

   261                     if (p.array()) {

   262                         final String tn = typeName(p);

   263                         String[] gs = toGetSet(p.name(), tn, p.array());

   264                         w.write("    this.prop_" + p.name() + " = proto.createList(\""

   265                             + p.name() + "\"");

   266                         if (p.mutable()) {

   267                             if (functionDeps.containsKey(p.name())) {

   268                                 int index = Arrays.asList(functionDeps.keySet().toArray()).indexOf(p.name());

   269                                 w.write(", " + index);

   270                             } else {

   271                                 w.write(", -1");

   272                             }

   273                         } else {

   274                             w.write(", java.lang.Integer.MIN_VALUE");

   275                         }

   276                         Collection<String[]> dependants = propsDeps.get(p.name());

   277                         if (dependants != null) {

   278                             for (String[] depProp : dependants) {

   279                                 w.write(", ");

   280                                 w.write('\"');

   281                                 w.write(depProp[0]);

   282                                 w.write('\"');

   283                             }

   284                         }

   285                         w.write(")");

   286                         w.write(";\n");

   287                     }

   288                 }

   289                 w.append("  };\n");

   290                 w.append("  public ").append(className).append("() {\n");

   291                 w.append("    this(net.java.html.BrwsrCtx.findDefault(").append(className).append(".class));\n");

   292                 for (Prprt p : props) {

   293                     if (!p.array()) {

   294                         boolean[] isModel = {false};

   295                         boolean[] isEnum = {false};

   296                         boolean isPrimitive[] = {false};

   297                         String tn = checkType(p, isModel, isEnum, isPrimitive);

   298                         if (isModel[0]) {

   299                             w.write("    prop_" + p.name() + " = this;\n");

   300                         }

   301                     }

   302                 }

   303                 w.append("  };\n");

   304                 if (props.length > 0 && builderPrefix == null) {

   305                     StringBuilder constructorWithArguments = new StringBuilder();

   306                     constructorWithArguments.append("  public ").append(className).append("(");

   307                     Prprt firstArray = null;

   308                     String sep = "";

   309                     int parameterCount = 0;

   310                     for (Prprt p : props) {

   311                         if (p.array()) {

   312                             if (firstArray == null) {

   313                                 firstArray = p;

   314                             }

   315                             continue;

   316                         }

   317                         String tn = typeName(p);

   318                         constructorWithArguments.append(sep);

   319                         constructorWithArguments.append(tn);

   320                         String[] third = toGetSet(p.name(), tn, false);

   321                         constructorWithArguments.append(" ").append(third[2]);

   322                         sep = ", ";

   323                         parameterCount++;

   324                     }

   325                     if (firstArray != null) {

   326                         String tn;

   327                         boolean[] isModel = {false};

   328                         boolean[] isEnum = {false};

   329                         boolean isPrimitive[] = {false};

   330                         tn = checkType(firstArray, isModel, isEnum, isPrimitive);

   331                         constructorWithArguments.append(sep);

   332                         constructorWithArguments.append(tn);

   333                         String[] third = toGetSet(firstArray.name(), tn, true);

   334                         constructorWithArguments.append("... ").append(third[2]);

   335                         parameterCount++;

   336                     }

   337                     constructorWithArguments.append(") {\n");

   338                     constructorWithArguments.append("    this(net.java.html.BrwsrCtx.findDefault(").append(className).append(".class));\n");

   339                     for (Prprt p : props) {

   340                         if (p.array()) {

   341                             continue;

   342                         }

   343                         String[] third = toGetSet(p.name(), null, false);

   344                         constructorWithArguments.append("    this.prop_" + p.name() + " = " + third[2] + ";\n");

   345                     }

   346                     if (firstArray != null) {

   347                         String[] third = toGetSet(firstArray.name(), null, true);

   348                         constructorWithArguments.append("    proto.initTo(this.prop_" + firstArray.name() + ", " + third[2] + ");\n");

   349                     }

   350                     constructorWithArguments.append("  };\n");

   351                     if (parameterCount < 255) {

   352                         w.write(constructorWithArguments.toString());

   353                     }

   354                 }

   355                 w.append("  private static class Html4JavaType extends org.netbeans.html.json.spi.Proto.Type<").append(className).append("> {\n");

   356                 w.append("    private Html4JavaType() {\n      super(").append(className).append(".class, ").

   357                     append(inPckName).append(".class, " + propsGetSet.size() + ", "

   358                     + functionsCount + ");\n");

   359                 {

   360                     for (int i = 0; i < propsGetSet.size(); i++) {

   361                         w.append("      registerProperty(\"").append(propsGetSet.get(i).name).append("\", ");

   362                         w.append((i) + ", " + propsGetSet.get(i).readOnly + ");\n");

   363                     }

   364                 }

   365                 {

   366                     for (int i = 0; i < functionsCount; i++) {

   367                         w.append("      registerFunction(\"").append((String)functions.get(i * 2)).append("\", ");

   368                         w.append(i + ");\n");

   369                     }

   370                 }

   371                 w.append("    }\n");

   372                 w.append("    @Override public void setValue(" + className + " data, int type, Object value) {\n");

   373                 w.append("      switch (type) {\n");

   374                 for (int i = 0; i < propsGetSet.size(); i++) {

   375                     final GetSet pgs = propsGetSet.get(i);

   376                     if (pgs.readOnly) {

   377                         continue;

   378                     }

   379                     final String set = pgs.setter;

   380                     String tn = pgs.type;

   381                     String btn = findBoxedType(tn);

   382                     if (btn != null) {

   383                         tn = btn;

   384                     }

   385                     w.append("        case " + i + ": ");

   386                     if (pgs.setter != null) {

   387                         w.append("data.").append(strip(pgs.setter)).append("(TYPE.extractValue(" + tn + ".class, value)); return;\n");

   388                     } else {

   389                         w.append("TYPE.replaceValue(data.").append(strip(pgs.getter)).append("(), " + tn + ".class, value); return;\n");

   390                     }

   391                 }

   392                 w.append("      }\n");

   393                 w.append("      throw new UnsupportedOperationException();\n");

   394                 w.append("    }\n");

   395                 w.append("    @Override public Object getValue(" + className + " data, int type) {\n");

   396                 w.append("      switch (type) {\n");

   397                 for (int i = 0; i < propsGetSet.size(); i++) {

   398                     final String get = propsGetSet.get(i).getter;

   399                     if (get != null) {

   400                         w.append("        case " + i + ": return data." + strip(get) + "();\n");

   401                     }

   402                 }

   403                 w.append("      }\n");

   404                 w.append("      throw new UnsupportedOperationException();\n");

   405                 w.append("    }\n");

   406                 w.append("    @Override public void call(" + className + " model, int type, Object data, Object ev) throws Exception {\n");

   407                 w.append("      switch (type) {\n");

   408                 for (int i = 0; i < functions.size(); i += 2) {

   409                     final String name = (String)functions.get(i);

   410                     final Object param = functions.get(i + 1);

   411                     if (param instanceof ExecutableElement) {

   412                         ExecutableElement ee = (ExecutableElement)param;

   413                         w.append("        case " + (i / 2) + ":\n");

   414                         w.append("          ");

   415                         if (m.instance()) {

   416                             w.append("model.instance");

   417                         } else {

   418                             w.append(((TypeElement)e).getQualifiedName());

   419                         }

   420                         w.append(".").append(name).append("(");

   421                         w.append(wrapParams(ee, null, className, "model", "ev", "data"));

   422                         w.append(");\n");

   423                         w.append("          return;\n");

   424                     } else {

   425                         String call = (String)param;

   426                         w.append("        case " + (i / 2) + ":\n"); // model." + name + "(data, ev); return;\n");

   427                         w.append("          ").append(call).append("\n");

   428                         w.append("          return;\n");

   430                     }

   431                 }

   432                 w.append("      }\n");

   433                 w.append("      throw new UnsupportedOperationException();\n");

   434                 w.append("    }\n");

   435                 w.append("    @Override public org.netbeans.html.json.spi.Proto protoFor(Object obj) {\n");

   436                 w.append("      return ((" + className + ")obj).proto;");

   437                 w.append("    }\n");

   438                 w.append("    @Override public void onChange(" + className + " model, int type) {\n");

   439                 w.append("      switch (type) {\n");

   440                 {

   441                     String[] arr = functionDeps.keySet().toArray(new String[0]);

   442                     for (int i = 0; i < arr.length; i++) {

   443                         Collection<String> onChange = functionDeps.get(arr[i]);

   444                         if (onChange != null) {

   445                             w.append("      case " + i + ":\n");

   446                             for (String call : onChange) {

   447                                 w.append("      ").append(call).append("\n");

   448                             }

   449                             w.write("      return;\n");

   450                         }

   451                     }

   452                 }

   453                 w.append("    }\n");

   454                 w.append("      throw new UnsupportedOperationException();\n");

   455                 w.append("    }\n");

   456                 w.append(onReceiveType);

   457                 w.append("    @Override public " + className + " read(net.java.html.BrwsrCtx c, Object json) { return new " + className + "(c, json); }\n");

   458                 w.append("    @Override public " + className + " cloneTo(" + className + " o, net.java.html.BrwsrCtx c) { return o.clone(c); }\n");

   459                 w.append("  }\n");

   460                 w.append("  private ").append(className).append("(net.java.html.BrwsrCtx c, Object json) {\n");

   461                 w.append("    this(c);\n");

   462                 int values = 0;

   463                 for (int i = 0; i < propsGetSet.size(); i++) {

   464                     Prprt p = findPrprt(props, propsGetSet.get(i).name);

   465                     if (p == null) {

   466                         continue;

   467                     }

   468                     values++;

   469                 }

   470                 w.append("    Object[] ret = new Object[" + values + "];\n");

   471                 w.append("    proto.extract(json, new String[] {\n");

   472                 for (int i = 0; i < propsGetSet.size(); i++) {

   473                     Prprt p = findPrprt(props, propsGetSet.get(i).name);

   474                     if (p == null) {

   475                         continue;

   476                     }

   477                     w.append("      \"").append(propsGetSet.get(i).name).append("\",\n");

   478                 }

   479                 w.append("    }, ret);\n");

   480                 for (int i = 0, cnt = 0, prop = 0; i < propsGetSet.size(); i++) {

   481                     final String pn = propsGetSet.get(i).name;

   482                     Prprt p = findPrprt(props, pn);

   483                     if (p == null || prop >= props.length) {

   484                         continue;

   485                     }

   486                     boolean[] isModel = { false };

   487                     boolean[] isEnum = { false };

   488                     boolean isPrimitive[] = { false };

   489                     String type = checkType(props[prop++], isModel, isEnum, isPrimitive);

   490                     if (p.array()) {

   491                         w.append("    for (Object e : useAsArray(ret[" + cnt + "])) {\n");

   492                         if (isModel[0]) {

   493                             w.append("      this.prop_").append(pn).append(".add(proto.read");

   494                             w.append("(" + type + ".class, e));\n");

   495                         } else if (isEnum[0]) {

   496                             w.append("        this.prop_").append(pn);

   497                             w.append(".add(e == null ? null : ");

   498                             w.append(type).append(".valueOf(TYPE.stringValue(e)));\n");

   499                         } else {

   500                             if (isPrimitive(type)) {

   501                                 if (type.equals("char")) {

   502                                     w.append("        this.prop_").append(pn).append(".add((char)TYPE.numberValue(e).");

   503                                     w.append("intValue());\n");

   504                                 } else {

   505                                     w.append("        this.prop_").append(pn).append(".add(TYPE.numberValue(e).");

   506                                     w.append(type).append("Value());\n");

   507                                 }

   508                             } else {

   509                                 w.append("        this.prop_").append(pn).append(".add((");

   510                                 w.append(type).append(")e);\n");

   511                             }

   512                         }

   513                         w.append("    }\n");

   514                     } else {

   515                         if (isEnum[0]) {

   516                             w.append("    try {\n");

   517                             w.append("    this.prop_").append(pn);

   518                             w.append(" = ret[" + cnt + "] == null ? null : ");

   519                             w.append(type).append(".valueOf(TYPE.stringValue(ret[" + cnt + "]));\n");

   520                             w.append("    } catch (IllegalArgumentException ex) {\n");

   521                             w.append("      ex.printStackTrace();\n");

   522                             w.append("    }\n");

   523                         } else if (isPrimitive(type)) {

   524                             w.append("    this.prop_").append(pn);

   525                             w.append(" = ret[" + cnt + "] == null ? ");

   526                             if ("char".equals(type)) {

   527                                 w.append("0 : (TYPE.charValue(");

   528                             } else if ("boolean".equals(type)) {

   529                                 w.append("false : (TYPE.boolValue(");

   530                             } else {

   531                                 w.append("0 : (TYPE.numberValue(");

   532                             }

   533                             w.append("ret[" + cnt + "])).");

   534                             w.append(type).append("Value();\n");

   535                         } else if (isModel[0]) {

   536                             w.append("    this.prop_").append(pn).append(" = proto.read");

   537                             w.append("(" + type + ".class, ");

   538                             w.append("ret[" + cnt + "]);\n");

   539                         }else {

   540                             w.append("    this.prop_").append(pn);

   541                             w.append(" = (").append(type).append(')');

   542                             w.append("ret[" + cnt + "];\n");

   543                         }

   544                     }

   545                     cnt++;

   546                 }

   547                 w.append("  }\n");

   548                 w.append("  private static Object[] useAsArray(Object o) {\n");

   549                 w.append("    return o instanceof Object[] ? ((Object[])o) : o == null ? new Object[0] : new Object[] { o };\n");

   550                 w.append("  }\n");

   551                 writeToString(props, w);

   552                 writeClone(className, props, w);

   553                 String targetId = findTargetId(e);

   554                 if (targetId != null) {

   555                     w.write("  /** Activates this model instance in the current {@link \n"

   556                         + "net.java.html.json.Models#bind(java.lang.Object, net.java.html.BrwsrCtx) browser context}. \n"

   557                         + "In case of using Knockout technology, this means to \n"

   558                         + "bind JSON like data in this model instance with Knockout tags in \n"

   559                         + "the surrounding HTML page.\n"

   560                     );

   561                     if (targetId != null) {

   562                         w.write("This method binds to element '" + targetId + "' on the page\n");

   563                     }

   564                     w.write(""

   565                         + "@return <code>this</code> object\n"

   566                         + "*/\n"

   567                     );

   568                     w.write("  public " + className + " applyBindings() {\n");

   569                     w.write("    proto.applyBindings();\n");

   570     //                w.write("    proto.applyBindings(id);\n");

   571                     w.write("    return this;\n");

   572                     w.write("  }\n");

   573                 } else {

   574                     w.write("  private " + className + " applyBindings() {\n");

   575                     w.write("    throw new IllegalStateException(\"Please specify targetId=\\\"\\\" in your @Model annotation\");\n");

   576                     w.write("  }\n");

   577                 }

   578                 w.write("  public boolean equals(Object o) {\n");

   579                 w.write("    if (o == this) return true;\n");

   580                 w.write("    if (!(o instanceof " + className + ")) return false;\n");

   581                 w.write("    " + className + " p = (" + className + ")o;\n");

   582                 for (Prprt p : props) {

   583                     w.write("    if (!TYPE.isSame(prop_" + p.name() + ", p.prop_" + p.name() + ")) return false;\n");

   584                 }

   585                 w.write("    return true;\n");

   586                 w.write("  }\n");

   587                 w.write("  public int hashCode() {\n");

   588                 w.write("    int h = " + className + ".class.getName().hashCode();\n");

   589                 for (Prprt p : props) {

   590                     w.write("    h = TYPE.hashPlus(prop_" + p.name() + ", h);\n");

   591                 }

   592                 w.write("    return h;\n");

   593                 w.write("  }\n");

   594                 w.write("}\n");

   595             } finally {

   596                 w.close();

   597             }

   598         } catch (IOException ex) {

   599             error("Can't create " + className + ".java", e);

   600             return false;

   601         }

   602         return ok;

   603     }

   605     private static String findBuilderPrefix(Element e, Model m) {

   606         if (!m.builder().isEmpty()) {

   607             return m.builder();

   608         }

   609         for (AnnotationMirror am : e.getAnnotationMirrors()) {

   610             for (Map.Entry<? extends Object, ? extends Object> entry : am.getElementValues().entrySet()) {

   611                 if ("builder()".equals(entry.getKey().toString())) {

   612                     return "";

   613                 }

   614             }

   615         }

   616         return null;

   617     }

   619     private static String builderMethod(String builderPrefix, Prprt p) {

   620         if (builderPrefix.isEmpty()) {

   621             return p.name();

   622         }

   623         return builderPrefix + Character.toUpperCase(p.name().charAt(0)) + p.name().substring(1);

   624     }

   626     private boolean generateProperties(

   627         Element where, String builderPrefix,

   628         Writer w, String className, Prprt[] properties,

   629         List<GetSet> props,

   630         Map<String,Collection<String[]>> deps,

   631         Map<String,Collection<String>> functionDeps

   632     ) throws IOException {

   633         boolean ok = true;

   634         for (Prprt p : properties) {

   635             final String tn;

   636             tn = typeName(p);

   637             String[] gs = toGetSet(p.name(), tn, p.array());

   638             String castTo;

   640             if (p.array()) {

   641                 w.write("  private final java.util.List<" + tn + "> prop_" + p.name() + ";\n");

   643                 castTo = "java.util.List";

   644                 w.write("  public java.util.List<" + tn + "> " + gs[0] + "() {\n");

   645                 w.write("    proto.accessProperty(\"" + p.name() + "\");\n");

   646                 w.write("    return prop_" + p.name() + ";\n");

   647                 w.write("  }\n");

   648                 if (builderPrefix != null) {

   649                     boolean[] isModel = {false};

   650                     boolean[] isEnum = {false};

   651                     boolean isPrimitive[] = {false};

   652                     String ret = checkType(p, isModel, isEnum, isPrimitive);

   653                     w.write("  public " + className + " " + builderMethod(builderPrefix, p) + "(" + ret + "... v) {\n");

   654                     w.write("    proto.accessProperty(\"" + p.name() + "\");\n");

   655                     w.append("   TYPE.replaceValue(prop_").append(p.name()).append(", " + tn + ".class, v);\n");

   656                     w.write("    return this;\n");

   657                     w.write("  }\n");

   658                 }

   659             } else {

   660                 castTo = tn;

   661                 boolean isModel[] = { false };

   662                 boolean isEnum[] = { false };

   663                 boolean isPrimitive[] = { false };

   664                 checkType(p, isModel, isEnum, isPrimitive);

   665                 if (isModel[0]) {

   666                     w.write("  private /*" + tn + "*/Object prop_" + p.name() + ";\n");

   668                 } else {

   669                     w.write("  private " + tn + " prop_" + p.name() + ";\n");

   670                 }

   671                 w.write("  public " + tn + " " + gs[0] + "() {\n");

   672                 w.write("    proto.accessProperty(\"" + p.name() + "\");\n");

   673                 if (isModel[0]) {

   674                     w.write("    if (prop_" + p.name() + " == this) prop_" + p.name() + " = new " + tn +"();\n");

   675                 }

   676                 w.write("    return (" + tn + ")prop_" + p.name() + ";\n");

   677                 w.write("  }\n");

   678                 w.write("  public void " + gs[1] + "(" + tn + " v) {\n");

   679                 if (!p.mutable()) {

   680                     w.write("    proto.initTo(null, null);\n");

   681                 }

   682                 w.write("    proto.verifyUnlocked();\n");

   683                 w.write("    Object o = prop_" + p.name() + ";\n");

   684                 if (isModel[0]) {

   685                     w.write("    if (o == v) return;\n");

   686                     w.write("    prop_" + p.name() + " = v;\n");

   687                 } else {

   688                     w.write("    if (TYPE.isSame(o , v)) return;\n");

   689                     w.write("    prop_" + p.name() + " = v;\n");

   690                 }

   691                 w.write("    proto.valueHasMutated(\"" + p.name() + "\", o, v);\n");

   692                 {

   693                     Collection<String[]> dependants = deps.get(p.name());

   694                     if (dependants != null) {

   695                         for (String[] pair : dependants) {

   696                             w.write("    proto.valueHasMutated(\"" + pair[0] + "\", null, " + pair[1] + "());\n");

   697                         }

   698                     }

   699                 }

   700                 {

   701                     Collection<String> dependants = functionDeps.get(p.name());

   702                     if (dependants != null) {

   703                         w.append("    ");

   704                         w.append(className).append(" model = ").append(className).append(".this;\n");

   705                         for (String call : dependants) {

   706                             w.append("  ").append(call);

   707                         }

   708                     }

   709                 }

   710                 w.write("  }\n");

   711                 if (builderPrefix != null) {

   712                     w.write("  public " + className + " " + builderMethod(builderPrefix, p) + "(" + tn + " v) {\n");

   713                     w.write("    " + gs[1] + "(v);\n");

   714                     w.write("    return this;\n");

   715                     w.write("  }\n");

   716                 }

   717             }

   719             for (int i = 0; i < props.size(); i++) {

   720                 if (props.get(i).name.equals(p.name())) {

   721                     error("Cannot have the name " + p.name() + " defined twice", where);

   722                     ok = false;

   723                 }

   724             }

   726             props.add(new GetSet(

   727                 p.name(),

   728                 gs[0],

   729                 gs[1],

   730                 tn,

   731                 gs[3] == null && !p.array()

   732             ));

   733         }

   734         return ok;

   735     }

   737     private boolean generateComputedProperties(

   738         String className,

   739         Writer w, Prprt[] fixedProps,

   740         Collection<? extends Element> arr, Collection<GetSet> props,

   741         Map<String,Collection<String[]>> deps

   742     ) throws IOException {

   743         boolean ok = true;

   744         for (Element e : arr) {

   745             if (e.getKind() != ElementKind.METHOD) {

   746                 continue;

   747             }

   748             final ComputedProperty cp = e.getAnnotation(ComputedProperty.class);

   749             final Transitive tp = e.getAnnotation(Transitive.class);

   750             if (cp == null) {

   751                 continue;

   752             }

   753             if (!e.getModifiers().contains(Modifier.STATIC)) {

   754                 error("Method " + e.getSimpleName() + " has to be static when annotated by @ComputedProperty", e);

   755                 ok = false;

   756                 continue;

   757             }

   758             ExecutableElement ee = (ExecutableElement)e;

   759             ExecutableElement write = null;

   760             if (!cp.write().isEmpty()) {

   761                 write = findWrite(ee, (TypeElement)e.getEnclosingElement(), cp.write(), className);

   762                 ok = write != null;

   763             }

   764             final TypeMirror rt = ee.getReturnType();

   765             final Types tu = processingEnv.getTypeUtils();

   766             TypeMirror ert = tu.erasure(rt);

   767             String tn = fqn(ert, ee);

   768             boolean array = false;

   769             final TypeMirror toCheck;

   770             if (tn.equals("java.util.List")) {

   771                 array = true;

   772                 toCheck = ((DeclaredType)rt).getTypeArguments().get(0);

   773             } else {

   774                 toCheck = rt;

   775             }

   777             final String sn = ee.getSimpleName().toString();

   779             if (toCheck.getKind().isPrimitive()) {

   780                 // OK

   781             } else {

   782                 TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();

   783                 TypeMirror enumType = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();

   785                 if (tu.isSubtype(toCheck, stringType)) {

   786                     // OK

   787                 } else if (tu.isSubtype(tu.erasure(toCheck), tu.erasure(enumType))) {

   788                     // OK

   789                 } else if (isModel(toCheck)) {

   790                     // OK

   791                 } else {

   792                     try {

   793                         tu.unboxedType(toCheck);

   794                         // boxed types are OK

   795                     } catch (IllegalArgumentException ex) {

   796                         ok = false;

   797                         error(sn + " cannot return " + toCheck, e);

   798                     }

   799                 }

   800             }

   802             String[] gs = toGetSet(sn, tn, array);

   804             w.write("  public " + tn);

   805             if (array) {

   806                 w.write("<" + toCheck + ">");

   807             }

   808             w.write(" " + gs[0] + "() {\n");

   809             int arg = 0;

   810             boolean deep = false;

   811             for (VariableElement pe : ee.getParameters()) {

   812                 final String dn = pe.getSimpleName().toString();

   814                 if (!verifyPropName(pe, dn, fixedProps)) {

   815                     ok = false;

   816                 }

   817                 final TypeMirror pt = pe.asType();

   818                 if (isModel(pt)) {

   819                     deep = true;

   820                 }

   821                 final String dt = fqn(pt, ee);

   822                 if (dt.startsWith("java.util.List") && pt instanceof DeclaredType) {

   823                     final List<? extends TypeMirror> ptArgs = ((DeclaredType)pt).getTypeArguments();

   824                     if (ptArgs.size() == 1 && isModel(ptArgs.get(0))) {

   825                         deep = true;

   826                     }

   827                 }

   828                 String[] call = toGetSet(dn, dt, false);

   829                 w.write("    " + dt + " arg" + (++arg) + " = ");

   830                 w.write(call[0] + "();\n");

   832                 Collection<String[]> depends = deps.get(dn);

   833                 if (depends == null) {

   834                     depends = new LinkedHashSet<String[]>();

   835                     deps.put(dn, depends);

   836                 }

   837                 depends.add(new String[] { sn, gs[0] });

   838             }

   839             w.write("    try {\n");

   840             if (tp != null) {

   841                 deep = tp.deep();

   842             }

   843             if (deep) {

   844                 w.write("      proto.acquireLock(\"" + sn + "\");\n");

   845             } else {

   846                 w.write("      proto.acquireLock();\n");

   847             }

   848             w.write("      return " + fqn(ee.getEnclosingElement().asType(), ee) + '.' + e.getSimpleName() + "(");

   849             String sep = "";

   850             for (int i = 1; i <= arg; i++) {

   851                 w.write(sep);

   852                 w.write("arg" + i);

   853                 sep = ", ";

   854             }

   855             w.write(");\n");

   856             w.write("    } finally {\n");

   857             w.write("      proto.releaseLock();\n");

   858             w.write("    }\n");

   859             w.write("  }\n");

   861             if (write == null) {

   862                 props.add(new GetSet(

   863                     e.getSimpleName().toString(),

   864                     gs[0],

   865                     null,

   866                     tn,

   867                     true

   868                 ));

   869             } else {

   870                 w.write("  public void " + gs[4] + "(" + write.getParameters().get(1).asType());

   871                 w.write(" value) {\n");

   872                 w.write("    " + fqn(ee.getEnclosingElement().asType(), ee) + '.' + write.getSimpleName() + "(this, value);\n");

   873                 w.write("  }\n");

   875                 props.add(new GetSet(

   876                     e.getSimpleName().toString(),

   877                     gs[0],

   878                     gs[4],

   879                     tn,

   880                     false

   881                 ));

   882             }

   883         }

   885         return ok;

   886     }

   888     private static String[] toGetSet(String name, String type, boolean array) {

   889         String n = Character.toUpperCase(name.charAt(0)) + name.substring(1);

   890         boolean clazz = "class".equals(name);

   891         String pref = clazz ? "access" : "get";

   892         if ("boolean".equals(type) && !array) {

   893             pref = "is";

   894         }

   895         if (array) {

   896             return new String[] {

   897                 pref + n,

   898                 null,

   899                 "a" + n,

   900                 null,

   901                 "set" + n

   902             };

   903         }

   904         return new String[]{

   905             pref + n,

   906             "set" + n,

   907             "a" + n,

   908             "",

   909             "set" + n

   910         };

   911     }

   913     private String typeName(Prprt p) {

   914         String ret;

   915         boolean[] isModel = { false };

   916         boolean[] isEnum = { false };

   917         boolean isPrimitive[] = { false };

   918         ret = checkType(p, isModel, isEnum, isPrimitive);

   919         if (p.array()) {

   920             String bt = findBoxedType(ret);

   921             if (bt != null) {

   922                 return bt;

   923             }

   924         }

   925         return ret;

   926     }

   928     private static String findBoxedType(String ret) {

   929         if (ret.equals("boolean")) {

   930             return Boolean.class.getName();

   931         }

   932         if (ret.equals("byte")) {

   933             return Byte.class.getName();

   934         }

   935         if (ret.equals("short")) {

   936             return Short.class.getName();

   937         }

   938         if (ret.equals("char")) {

   939             return Character.class.getName();

   940         }

   941         if (ret.equals("int")) {

   942             return Integer.class.getName();

   943         }

   944         if (ret.equals("long")) {

   945             return Long.class.getName();

   946         }

   947         if (ret.equals("float")) {

   948             return Float.class.getName();

   949         }

   950         if (ret.equals("double")) {

   951             return Double.class.getName();

   952         }

   953         return null;

   954     }

   956     private boolean verifyPropName(Element e, String propName, Prprt[] existingProps) {

   957         StringBuilder sb = new StringBuilder();

   958         String sep = "";

   959         for (Prprt Prprt : existingProps) {

   960             if (Prprt.name().equals(propName)) {

   961                 return true;

   962             }

   963             sb.append(sep);

   964             sb.append('"');

   965             sb.append(Prprt.name());

   966             sb.append('"');

   967             sep = ", ";

   968         }

   969         error(

   970             propName + " is not one of known properties: " + sb

   971             , e

   972         );

   973         return false;

   974     }

   976     private static String findPkgName(Element e) {

   977         for (;;) {

   978             if (e.getKind() == ElementKind.PACKAGE) {

   979                 return ((PackageElement)e).getQualifiedName().toString();

   980             }

   981             e = e.getEnclosingElement();

   982         }

   983     }

   985     private boolean generateFunctions(

   986         Element clazz, StringWriter body, String className,

   987         List<? extends Element> enclosedElements, List<Object> functions

   988     ) {

   989         boolean instance = clazz.getAnnotation(Model.class).instance();

   990         for (Element m : enclosedElements) {

   991             if (m.getKind() != ElementKind.METHOD) {

   992                 continue;

   993             }

   994             ExecutableElement e = (ExecutableElement)m;

   995             Function onF = e.getAnnotation(Function.class);

   996             if (onF == null) {

   997                 continue;

   998             }

   999             if (!instance && !e.getModifiers().contains(Modifier.STATIC)) {

  1000                 error("@OnFunction method needs to be static", e);

  1001                 return false;

  1002             }

  1003             if (e.getModifiers().contains(Modifier.PRIVATE)) {

  1004                 error("@OnFunction method cannot be private", e);

  1005                 return false;

  1006             }

  1007             if (e.getReturnType().getKind() != TypeKind.VOID) {

  1008                 error("@OnFunction method should return void", e);

  1009                 return false;

  1010             }

  1011             String n = e.getSimpleName().toString();

  1012             functions.add(n);

  1013             functions.add(e);

  1014         }

  1015         return true;

  1016     }

  1018     private boolean generateOnChange(Element clazz, Map<String,Collection<String[]>> propDeps,

  1019         Prprt[] properties, String className,

  1020         Map<String, Collection<String>> functionDeps

  1021     ) {

  1022         boolean instance = clazz.getAnnotation(Model.class).instance();

  1023         for (Element m : clazz.getEnclosedElements()) {

  1024             if (m.getKind() != ElementKind.METHOD) {

  1025                 continue;

  1026             }

  1027             ExecutableElement e = (ExecutableElement) m;

  1028             OnPropertyChange onPC = e.getAnnotation(OnPropertyChange.class);

  1029             if (onPC == null) {

  1030                 continue;

  1031             }

  1032             for (String pn : onPC.value()) {

  1033                 if (findPrprt(properties, pn) == null && findDerivedFrom(propDeps, pn).isEmpty()) {

  1034                     error("No Prprt named '" + pn + "' in the model", clazz);

  1035                     return false;

  1036                 }

  1037             }

  1038             if (!instance && !e.getModifiers().contains(Modifier.STATIC)) {

  1039                 error("@OnPrprtChange method needs to be static", e);

  1040                 return false;

  1041             }

  1042             if (e.getModifiers().contains(Modifier.PRIVATE)) {

  1043                 error("@OnPrprtChange method cannot be private", e);

  1044                 return false;

  1045             }

  1046             if (e.getReturnType().getKind() != TypeKind.VOID) {

  1047                 error("@OnPrprtChange method should return void", e);

  1048                 return false;

  1049             }

  1050             String n = e.getSimpleName().toString();

  1053             for (String pn : onPC.value()) {

  1054                 StringBuilder call = new StringBuilder();

  1055                 call.append("  ").append(inPckName(clazz, instance)).append(".").append(n).append("(");

  1056                 call.append(wrapPropName(e, className, "name", pn));

  1057                 call.append(");\n");

  1059                 Collection<String> change = functionDeps.get(pn);

  1060                 if (change == null) {

  1061                     change = new ArrayList<String>();

  1062                     functionDeps.put(pn, change);

  1063                 }

  1064                 change.add(call.toString());

  1065                 for (String dpn : findDerivedFrom(propDeps, pn)) {

  1066                     change = functionDeps.get(dpn);

  1067                     if (change == null) {

  1068                         change = new ArrayList<String>();

  1069                         functionDeps.put(dpn, change);

  1070                     }

  1071                     change.add(call.toString());

  1072                 }

  1073             }

  1074         }

  1075         return true;

  1076     }

  1078     private boolean generateOperation(Element clazz,

  1079         StringWriter body, String className,

  1080         List<? extends Element> enclosedElements,

  1081         List<Object> functions

  1082     ) {

  1083         boolean instance = clazz.getAnnotation(Model.class).instance();

  1084         for (Element m : enclosedElements) {

  1085             if (m.getKind() != ElementKind.METHOD) {

  1086                 continue;

  1087             }

  1088             ExecutableElement e = (ExecutableElement)m;

  1089             ModelOperation mO = e.getAnnotation(ModelOperation.class);

  1090             if (mO == null) {

  1091                 continue;

  1092             }

  1093             if (!instance && !e.getModifiers().contains(Modifier.STATIC)) {

  1094                 error("@ModelOperation method needs to be static", e);

  1095                 return false;

  1096             }

  1097             if (e.getModifiers().contains(Modifier.PRIVATE)) {

  1098                 error("@ModelOperation method cannot be private", e);

  1099                 return false;

  1100             }

  1101             if (e.getReturnType().getKind() != TypeKind.VOID) {

  1102                 error("@ModelOperation method should return void", e);

  1103                 return false;

  1104             }

  1105             List<String> args = new ArrayList<String>();

  1106             {

  1107                 body.append("  /** @see " + clazz.getSimpleName() + "#" + m.getSimpleName() + " */\n");

  1108                 body.append("  public void ").append(m.getSimpleName()).append("(");

  1109                 String sep = "";

  1110                 boolean checkFirst = true;

  1111                 for (VariableElement ve : e.getParameters()) {

  1112                     final TypeMirror type = ve.asType();

  1113                     CharSequence simpleName;

  1114                     if (type.getKind() == TypeKind.DECLARED) {

  1115                         simpleName = ((DeclaredType)type).asElement().getSimpleName();

  1116                     } else {

  1117                         simpleName = type.toString();

  1118                     }

  1119                     if (checkFirst && simpleName.toString().equals(className)) {

  1120                         checkFirst = false;

  1121                     } else {

  1122                         if (checkFirst) {

  1123                             error("First parameter of @ModelOperation method must be " + className, m);

  1124                             return false;

  1125                         }

  1126                         args.add(ve.getSimpleName().toString());

  1127                         body.append(sep).append("final ");

  1128                         body.append(ve.asType().toString()).append(" ");

  1129                         body.append(ve.toString());

  1130                         sep = ", ";

  1131                     }

  1132                 }

  1133                 body.append(") {\n");

  1134                 int idx = functions.size() / 2;

  1135                 functions.add(m.getSimpleName().toString());

  1136                 body.append("    proto.runInBrowser(" + idx);

  1137                 for (String s : args) {

  1138                     body.append(", ").append(s);

  1139                 }

  1140                 body.append(");\n");

  1141                 body.append("  }\n");

  1143                 StringBuilder call = new StringBuilder();

  1144                 call.append("{ Object[] arr = (Object[])data; ");

  1145                 call.append(inPckName(clazz, true)).append(".").append(m.getSimpleName()).append("(");

  1146                 int i = 0;

  1147                 for (VariableElement ve : e.getParameters()) {

  1148                     if (i++ == 0) {

  1149                         call.append("model");

  1150                         continue;

  1151                     }

  1152                     String type = ve.asType().toString();

  1153                     String boxedType = findBoxedType(type);

  1154                     if (boxedType != null) {

  1155                         type = boxedType;

  1156                     }

  1157                     call.append(", ").append("(").append(type).append(")arr[").append(i - 2).append("]");

  1158                 }

  1159                 call.append("); }");

  1160                 functions.add(call.toString());

  1161             }

  1163         }

  1164         return true;

  1165     }

  1168     private boolean generateReceive(

  1169         Element clazz, StringWriter body, String className,

  1170         List<? extends Element> enclosedElements, StringBuilder inType

  1171     ) {

  1172         boolean ret = generateReceiveImpl(clazz, body, className, enclosedElements, inType);

  1173         if (!ret) {

  1174             inType.setLength(0);

  1175         }

  1176         return ret;

  1177     }

  1178     private boolean generateReceiveImpl(

  1179         Element clazz, StringWriter body, String className,

  1180         List<? extends Element> enclosedElements, StringBuilder inType

  1181     ) {

  1182         inType.append("  @Override public void onMessage(").append(className).append(" model, int index, int type, Object data, Object[] params) {\n");

  1183         inType.append("    switch (index) {\n");

  1184         int index = 0;

  1185         boolean ok = true;

  1186         boolean instance = clazz.getAnnotation(Model.class).instance();

  1187         for (Element m : enclosedElements) {

  1188             if (m.getKind() != ElementKind.METHOD) {

  1189                 continue;

  1190             }

  1191             ExecutableElement e = (ExecutableElement)m;

  1192             OnReceive onR = e.getAnnotation(OnReceive.class);

  1193             if (onR == null) {

  1194                 continue;

  1195             }

  1196             if (!instance && !e.getModifiers().contains(Modifier.STATIC)) {

  1197                 error("@OnReceive method needs to be static", e);

  1198                 return false;

  1199             }

  1200             if (e.getModifiers().contains(Modifier.PRIVATE)) {

  1201                 error("@OnReceive method cannot be private", e);

  1202                 return false;

  1203             }

  1204             if (e.getReturnType().getKind() != TypeKind.VOID) {

  1205                 error("@OnReceive method should return void", e);

  1206                 return false;

  1207             }

  1208             if (!onR.jsonp().isEmpty() && !"GET".equals(onR.method())) {

  1209                 error("JSONP works only with GET transport method", e);

  1210             }

  1211             String dataMirror = findDataSpecified(e, onR);

  1212             if ("PUT".equals(onR.method()) && dataMirror == null) {

  1213                 error("PUT method needs to specify a data() class", e);

  1214                 return false;

  1215             }

  1216             if ("POST".equals(onR.method()) && dataMirror == null) {

  1217                 error("POST method needs to specify a data() class", e);

  1218                 return false;

  1219             }

  1220             if (e.getParameters().size() < 2) {

  1221                 error("@OnReceive method needs at least two parameters", e);

  1222             }

  1223             final boolean isWebSocket = "WebSocket".equals(onR.method());

  1224             if (isWebSocket && dataMirror == null) {

  1225                 error("WebSocket method needs to specify a data() class", e);

  1226             }

  1227             int expectsList = 0;

  1228             List<String> args = new ArrayList<String>();

  1229             List<String> params = new ArrayList<String>();

  1230             // first argument is model class

  1231             {

  1232                 TypeMirror type = e.getParameters().get(0).asType();

  1233                 CharSequence simpleName;

  1234                 if (type.getKind() == TypeKind.DECLARED) {

  1235                     simpleName = ((DeclaredType) type).asElement().getSimpleName();

  1236                 } else {

  1237                     simpleName = type.toString();

  1238                 }

  1239                 if (simpleName.toString().equals(className)) {

  1240                     args.add("model");

  1241                 } else {

  1242                     error("First parameter needs to be " + className, e);

  1243                     return false;

  1244                 }

  1245             }

  1247             String modelClass;

  1248             {

  1249                 final Types tu = processingEnv.getTypeUtils();

  1250                 TypeMirror type = e.getParameters().get(1).asType();

  1251                 TypeMirror modelType = null;

  1252                 TypeMirror ert = tu.erasure(type);

  1254                 if (isModel(type)) {

  1255                     modelType = type;

  1256                 } else if (type.getKind() == TypeKind.ARRAY) {

  1257                     modelType = ((ArrayType)type).getComponentType();

  1258                     expectsList = 1;

  1259                 } else if ("java.util.List".equals(fqn(ert, e))) {

  1260                     List<? extends TypeMirror> typeArgs = ((DeclaredType)type).getTypeArguments();

  1261                     if (typeArgs.size() == 1) {

  1262                         modelType = typeArgs.get(0);

  1263                         expectsList = 2;

  1264                     }

  1265                 } else if (type.toString().equals("java.lang.String")) {

  1266                     modelType = type;

  1267                 }

  1268                 if (modelType == null) {

  1269                     error("Second arguments needs to be a model, String or array or List of models", e);

  1270                     return false;

  1271                 }

  1272                 modelClass = modelType.toString();

  1273                 if (expectsList == 1) {

  1274                     args.add("arr");

  1275                 } else if (expectsList == 2) {

  1276                     args.add("java.util.Arrays.asList(arr)");

  1277                 } else {

  1278                     args.add("arr[0]");

  1279                 }

  1280             }

  1281             String n = e.getSimpleName().toString();

  1282             if (isWebSocket) {

  1283                 body.append("  /** Performs WebSocket communication. Call with <code>null</code> data parameter\n");

  1284                 body.append("  * to open the connection (even if not required). Call with non-null data to\n");

  1285                 body.append("  * send messages to server. Call again with <code>null</code> data to close the socket.\n");

  1286                 body.append("  */\n");

  1287                 if (onR.headers().length > 0) {

  1288                     error("WebSocket spec does not support headers", e);

  1289                 }

  1290             }

  1291             body.append("  public void ").append(n).append("(");

  1292             StringBuilder urlBefore = new StringBuilder();

  1293             StringBuilder urlAfter = new StringBuilder();

  1294             StringBuilder headers = new StringBuilder();

  1295             String jsonpVarName = null;

  1296             {

  1297                 String sep = "";

  1298                 boolean skipJSONP = onR.jsonp().isEmpty();

  1299                 Set<String> receiveParams = new LinkedHashSet<String>();

  1300                 findParamNames(receiveParams, e, onR.url(), onR.jsonp(), urlBefore, urlAfter);

  1301                 for (String headerLine : onR.headers()) {

  1302                     if (headerLine.contains("\r") || headerLine.contains("\n")) {

  1303                         error("Header line cannot contain line separator", e);

  1304                     }

  1305                     findParamNames(receiveParams, e, headerLine, null, headers);

  1306                     headers.append("+ \"\\r\\n\" +\n");

  1307                 }

  1308                 if (headers.length() > 0) {

  1309                     headers.append("\"\"");

  1310                 }

  1311                 for (String p : receiveParams) {

  1312                     if (!skipJSONP && p.equals(onR.jsonp())) {

  1313                         skipJSONP = true;

  1314                         jsonpVarName = p;

  1315                         continue;

  1316                     }

  1317                     body.append(sep);

  1318                     body.append("String ").append(p);

  1319                     sep = ", ";

  1320                 }

  1321                 if (!skipJSONP) {

  1322                     error(

  1323                         "Name of jsonp attribute ('" + onR.jsonp() +

  1324                         "') is not used in url attribute '" + onR.url() + "'", e

  1325                     );

  1326                 }

  1327                 if (dataMirror != null) {

  1328                     body.append(sep).append(dataMirror.toString()).append(" data");

  1329                 }

  1330                 for (int i = 2; i < e.getParameters().size(); i++) {

  1331                     if (isWebSocket) {

  1332                         error("@OnReceive(method=\"WebSocket\") can only have two arguments", e);

  1333                         ok = false;

  1334                     }

  1336                     VariableElement ve = e.getParameters().get(i);

  1337                     body.append(sep).append(ve.asType().toString()).append(" ").append(ve.getSimpleName());

  1338                     final String tp = ve.asType().toString();

  1339                     String btn = findBoxedType(tp);

  1340                     if (btn == null) {

  1341                         btn = tp;

  1342                     }

  1343                     args.add("(" + btn + ")params[" + (i - 2) + "]");

  1344                     params.add(ve.getSimpleName().toString());

  1345                     sep = ", ";

  1346                 }

  1347             }

  1348             body.append(") {\n");

  1349             boolean webSocket = onR.method().equals("WebSocket");

  1350             if (webSocket) {

  1351                 if (generateWSReceiveBody(index++, body, inType, onR, e, clazz, className, expectsList != 0, modelClass, n, args, params, urlBefore, jsonpVarName, urlAfter, dataMirror, headers)) {

  1352                     return false;

  1353                 }

  1354                 body.append("  }\n");

  1355                 body.append("  private Object ws_" + e.getSimpleName() + ";\n");

  1356             } else {

  1357                 if (generateJSONReceiveBody(index++, body, inType, onR, e, clazz, className, expectsList != 0, modelClass, n, args, params, urlBefore, jsonpVarName, urlAfter, dataMirror, headers)) {

  1358                     ok = false;

  1359                 }

  1360                 body.append("  }\n");

  1361             }

  1362         }

  1363         inType.append("    }\n");

  1364         inType.append("    throw new UnsupportedOperationException(\"index: \" + index + \" type: \" + type);\n");

  1365         inType.append("  }\n");

  1366         return ok;

  1367     }

  1369     private boolean generateJSONReceiveBody(int index, StringWriter method, StringBuilder body, OnReceive onR, ExecutableElement e, Element clazz, String className, boolean expectsList, String modelClass, String n, List<String> args, List<String> params, StringBuilder urlBefore, String jsonpVarName, StringBuilder urlAfter, String dataMirror, StringBuilder headers) {

  1370         boolean error = false;

  1371         body.append(

  1372             "    case " + index + ": {\n" +

  1373             "      if (type == 2) { /* on error */\n" +

  1374             "        Exception ex = (Exception)data;\n"

  1375             );

  1376         if (onR.onError().isEmpty()) {

  1377             body.append(

  1378                 "        ex.printStackTrace();\n"

  1379                 );

  1380         } else {

  1381             error = !findOnError(e, ((TypeElement)clazz), onR.onError(), className);

  1382             body.append("        ").append(clazz.getSimpleName()).append(".").append(onR.onError()).append("(");

  1383             body.append("model, ex);\n");

  1384         }

  1385         body.append(

  1386             "        return;\n" +

  1387             "      } else if (type == 1) {\n" +

  1388             "        Object[] ev = (Object[])data;\n"

  1389             );

  1390         if (expectsList) {

  1391             body.append(

  1392                 "        " + modelClass + "[] arr = new " + modelClass + "[ev.length];\n"

  1393                 );

  1394         } else {

  1395             body.append(

  1396                 "        " + modelClass + "[] arr = { null };\n"

  1397                 );

  1398         }

  1399         body.append(

  1400             "        TYPE.copyJSON(model.proto.getContext(), ev, " + modelClass + ".class, arr);\n"

  1401         );

  1402         {

  1403             body.append("        ").append(clazz.getSimpleName()).append(".").append(n).append("(");

  1404             String sep = "";

  1405             for (String arg : args) {

  1406                 body.append(sep);

  1407                 body.append(arg);

  1408                 sep = ", ";

  1409             }

  1410             body.append(");\n");

  1411         }

  1412         body.append(

  1413             "        return;\n" +

  1414             "      }\n" +

  1415             "    }\n"

  1416             );

  1417         method.append("    proto.loadJSONWithHeaders(" + index + ",\n        ");

  1418         method.append(headers.length() == 0 ? "null" : headers).append(",\n        ");

  1419         method.append(urlBefore).append(", ");

  1420         if (jsonpVarName != null) {

  1421             method.append(urlAfter);

  1422         } else {

  1423             method.append("null");

  1424         }

  1425         if (!"GET".equals(onR.method()) || dataMirror != null) {

  1426             method.append(", \"").append(onR.method()).append('"');

  1427             if (dataMirror != null) {

  1428                 method.append(", data");

  1429             } else {

  1430                 method.append(", null");

  1431             }

  1432         } else {

  1433             method.append(", null, null");

  1434         }

  1435         for (String a : params) {

  1436             method.append(", ").append(a);

  1437         }

  1438         method.append(");\n");

  1439         return error;

  1440     }

  1442     private boolean generateWSReceiveBody(int index, StringWriter method, StringBuilder body, OnReceive onR, ExecutableElement e, Element clazz, String className, boolean expectsList, String modelClass, String n, List<String> args, List<String> params, StringBuilder urlBefore, String jsonpVarName, StringBuilder urlAfter, String dataMirror, StringBuilder headers) {

  1443         body.append(

  1444             "    case " + index + ": {\n" +

  1445             "      if (type == 0) { /* on open */\n" +

  1446             "        ").append(inPckName(clazz, true)).append(".").append(n).append("(");

  1447         {

  1448             String sep = "";

  1449             for (String arg : args) {

  1450                 body.append(sep);

  1451                 if (arg.startsWith("arr") || arg.startsWith("java.util.Array")) {

  1452                     body.append("null");

  1453                 } else {

  1454                     body.append(arg);

  1455                 }

  1456                 sep = ", ";

  1457             }

  1458         }

  1459         body.append(");\n");

  1460         body.append(

  1461             "        return;\n" +

  1462             "      } else if (type == 2) { /* on error */\n" +

  1463             "        Exception value = (Exception)data;\n"

  1464             );

  1465         if (onR.onError().isEmpty()) {

  1466             body.append(

  1467                 "        value.printStackTrace();\n"

  1468                 );

  1469         } else {

  1470             if (!findOnError(e, ((TypeElement)clazz), onR.onError(), className)) {

  1471                 return true;

  1472             }

  1473             body.append("        ").append(inPckName(clazz, true)).append(".").append(onR.onError()).append("(");

  1474             body.append("model, value);\n");

  1475         }

  1476         body.append(

  1477             "        return;\n" +

  1478             "      } else if (type == 1) {\n" +

  1479             "        Object[] ev = (Object[])data;\n"

  1480         );

  1481         if (expectsList) {

  1482             body.append(

  1483                 "        " + modelClass + "[] arr = new " + modelClass + "[ev.length];\n"

  1484                 );

  1485         } else {

  1486             body.append(

  1487                 "        " + modelClass + "[] arr = { null };\n"

  1488                 );

  1489         }

  1490         body.append(

  1491             "        TYPE.copyJSON(model.proto.getContext(), ev, " + modelClass + ".class, arr);\n"

  1492         );

  1493         {

  1494             body.append("        ").append(inPckName(clazz, true)).append(".").append(n).append("(");

  1495             String sep = "";

  1496             for (String arg : args) {

  1497                 body.append(sep);

  1498                 body.append(arg);

  1499                 sep = ", ";

  1500             }

  1501             body.append(");\n");

  1502         }

  1503         body.append(

  1504             "        return;\n" +

  1505             "      }"

  1506         );

  1507         if (!onR.onError().isEmpty()) {

  1508             body.append(" else if (type == 3) { /* on close */\n");

  1509             body.append("        ").append(inPckName(clazz, true)).append(".").append(onR.onError()).append("(");

  1510             body.append("model, null);\n");

  1511             body.append(

  1512                 "        return;" +

  1513                 "      }"

  1514             );

  1515         }

  1516         body.append("\n");

  1517         body.append("    }\n");

  1518         method.append("    if (this.ws_").append(e.getSimpleName()).append(" == null) {\n");

  1519         method.append("      this.ws_").append(e.getSimpleName());

  1520         method.append("= proto.wsOpen(" + index + ", ");

  1521         method.append(urlBefore).append(", data);\n");

  1522         method.append("    } else {\n");

  1523         method.append("      proto.wsSend(this.ws_").append(e.getSimpleName()).append(", ").append(urlBefore).append(", data");

  1524         for (String a : params) {

  1525             method.append(", ").append(a);

  1526         }

  1527         method.append(");\n");

  1528         method.append("    }\n");

  1529         return false;

  1530     }

  1532     private CharSequence wrapParams(

  1533         ExecutableElement ee, String id, String className, String classRef, String evName, String dataName

  1534     ) {

  1535         TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();

  1536         StringBuilder params = new StringBuilder();

  1537         boolean first = true;

  1538         for (VariableElement ve : ee.getParameters()) {

  1539             if (!first) {

  1540                 params.append(", ");

  1541             }

  1542             first = false;

  1543             String toCall = null;

  1544             String toFinish = null;

  1545             boolean addNull = true;

  1546             if (ve.asType() == stringType) {

  1547                 if (ve.getSimpleName().contentEquals("id")) {

  1548                     params.append('"').append(id).append('"');

  1549                     continue;

  1550                 }

  1551                 toCall = classRef + ".proto.toString(";

  1552             }

  1553             if (ve.asType().getKind() == TypeKind.DOUBLE) {

  1554                 toCall = classRef + ".proto.toNumber(";

  1555                 toFinish = ".doubleValue()";

  1556             }

  1557             if (ve.asType().getKind() == TypeKind.FLOAT) {

  1558                 toCall = classRef + ".proto.toNumber(";

  1559                 toFinish = ".floatValue()";

  1560             }

  1561             if (ve.asType().getKind() == TypeKind.INT) {

  1562                 toCall = classRef + ".proto.toNumber(";

  1563                 toFinish = ".intValue()";

  1564             }

  1565             if (ve.asType().getKind() == TypeKind.BYTE) {

  1566                 toCall = classRef + ".proto.toNumber(";

  1567                 toFinish = ".byteValue()";

  1568             }

  1569             if (ve.asType().getKind() == TypeKind.SHORT) {

  1570                 toCall = classRef + ".proto.toNumber(";

  1571                 toFinish = ".shortValue()";

  1572             }

  1573             if (ve.asType().getKind() == TypeKind.LONG) {

  1574                 toCall = classRef + ".proto.toNumber(";

  1575                 toFinish = ".longValue()";

  1576             }

  1577             if (ve.asType().getKind() == TypeKind.BOOLEAN) {

  1578                 toCall = "\"true\".equals(" + classRef + ".proto.toString(";

  1579                 toFinish = ")";

  1580             }

  1581             if (ve.asType().getKind() == TypeKind.CHAR) {

  1582                 toCall = "(char)" + classRef + ".proto.toNumber(";

  1583                 toFinish = ".intValue()";

  1584             }

  1585             if (dataName != null && ve.getSimpleName().contentEquals(dataName) && isModel(ve.asType())) {

  1586                 toCall = classRef + ".proto.toModel(" + ve.asType() + ".class, ";

  1587                 addNull = false;

  1588             }

  1590             if (toCall != null) {

  1591                 params.append(toCall);

  1592                 if (dataName != null && ve.getSimpleName().contentEquals(dataName)) {

  1593                     params.append(dataName);

  1594                     if (addNull) {

  1595                         params.append(", null");

  1596                     }

  1597                 } else {

  1598                     if (evName == null) {

  1599                         final StringBuilder sb = new StringBuilder();

  1600                         sb.append("Unexpected string parameter name.");

  1601                         if (dataName != null) {

  1602                             sb.append(" Try \"").append(dataName).append("\"");

  1603                         }

  1604                         error(sb.toString(), ee);

  1605                     }

  1606                     params.append(evName);

  1607                     params.append(", \"");

  1608                     params.append(ve.getSimpleName().toString());

  1609                     params.append("\"");

  1610                 }

  1611                 params.append(")");

  1612                 if (toFinish != null) {

  1613                     params.append(toFinish);

  1614                 }

  1615                 continue;

  1616             }

  1617             String rn = fqn(ve.asType(), ee);

  1618             int last = rn.lastIndexOf('.');

  1619             if (last >= 0) {

  1620                 rn = rn.substring(last + 1);

  1621             }

  1622             if (rn.equals(className)) {

  1623                 params.append(classRef);

  1624                 continue;

  1625             }

  1626             StringBuilder err = new StringBuilder();

  1627             err.append("Argument ").

  1628                 append(ve.getSimpleName()).

  1629                 append(" is not valid. The annotated method can only accept ").

  1630                 append(className).

  1631                 append(" argument");

  1632             if (dataName != null) {

  1633                 err.append(" or argument named '").append(dataName).append("'");

  1634             }

  1635             err.append(".");

  1636             error(err.toString(), ee);

  1637         }

  1638         return params;

  1639     }

  1642     private CharSequence wrapPropName(

  1643         ExecutableElement ee, String className, String propName, String propValue

  1644     ) {

  1645         TypeMirror stringType = processingEnv.getElementUtils().getTypeElement("java.lang.String").asType();

  1646         StringBuilder params = new StringBuilder();

  1647         boolean first = true;

  1648         for (VariableElement ve : ee.getParameters()) {

  1649             if (!first) {

  1650                 params.append(", ");

  1651             }

  1652             first = false;

  1653             if (ve.asType() == stringType) {

  1654                 if (propName != null && ve.getSimpleName().contentEquals(propName)) {

  1655                     params.append('"').append(propValue).append('"');

  1656                 } else {

  1657                     error("Unexpected string parameter name. Try \"" + propName + "\".", ee);

  1658                 }

  1659                 continue;

  1660             }

  1661             String rn = fqn(ve.asType(), ee);

  1662             int last = rn.lastIndexOf('.');

  1663             if (last >= 0) {

  1664                 rn = rn.substring(last + 1);

  1665             }

  1666             if (rn.equals(className)) {

  1667                 params.append("model");

  1668                 continue;

  1669             }

  1670             error(

  1671                 "@OnPrprtChange method can only accept String or " + className + " arguments",

  1672                 ee);

  1673         }

  1674         return params;

  1675     }

  1677     private boolean isModel(TypeMirror tm) {

  1678         if (tm.getKind() == TypeKind.ERROR) {

  1679             return true;

  1680         }

  1681         final Element e = processingEnv.getTypeUtils().asElement(tm);

  1682         if (e == null) {

  1683             return false;

  1684         }

  1685         for (Element ch : e.getEnclosedElements()) {

  1686             if (ch.getKind() == ElementKind.METHOD) {

  1687                 ExecutableElement ee = (ExecutableElement)ch;

  1688                 if (ee.getParameters().isEmpty() && ee.getSimpleName().contentEquals("modelFor")) {

  1689                     return true;

  1690                 }

  1691             }

  1692         }

  1693         return models.values().contains(e.getSimpleName().toString());

  1694     }

  1696     private void writeToString(Prprt[] props, Writer w) throws IOException {

  1697         w.write("  public String toString() {\n");

  1698         w.write("    StringBuilder sb = new StringBuilder();\n");

  1699         w.write("    sb.append('{');\n");

  1700         String sep = "";

  1701         for (Prprt p : props) {

  1702             w.write(sep);

  1703             w.append("    sb.append('\"').append(\"" + p.name() + "\")");

  1704                 w.append(".append('\"').append(\":\");\n");

  1705             w.append("    sb.append(TYPE.toJSON(prop_");

  1706             w.append(p.name()).append("));\n");

  1707             sep =    "    sb.append(',');\n";

  1708         }

  1709         w.write("    sb.append('}');\n");

  1710         w.write("    return sb.toString();\n");

  1711         w.write("  }\n");

  1712     }

  1713     private void writeClone(String className, Prprt[] props, Writer w) throws IOException {

  1714         w.write("  public " + className + " clone() {\n");

  1715         w.write("    return clone(proto.getContext());\n");

  1716         w.write("  }\n");

  1717         w.write("  private " + className + " clone(net.java.html.BrwsrCtx ctx) {\n");

  1718         w.write("    " + className + " ret = new " + className + "(ctx);\n");

  1719         for (Prprt p : props) {

  1720             String tn = typeName(p);

  1721             String[] gs = toGetSet(p.name(), tn, p.array());

  1722             if (!p.array()) {

  1723                 boolean isModel[] = { false };

  1724                 boolean isEnum[] = { false };

  1725                 boolean isPrimitive[] = { false };

  1726                 checkType(p, isModel, isEnum, isPrimitive);

  1727                 if (!isModel[0]) {

  1728                     w.write("    ret.prop_" + p.name() + " = " + gs[0] + "();\n");

  1729                     continue;

  1730                 }

  1731                 w.write("    ret.prop_" + p.name() + " =  " + gs[0] + "()  == null ? null : " + gs[0] + "().clone();\n");

  1732             } else {

  1733                 w.write("    proto.cloneList(ret." + gs[0] + "(), ctx, prop_" + p.name() + ");\n");

  1734             }

  1735         }

  1737         w.write("    return ret;\n");

  1738         w.write("  }\n");

  1739     }

  1741     private String inPckName(Element e, boolean preferInstance) {

  1742         if (preferInstance && e.getAnnotation(Model.class).instance()) {

  1743             return "model.instance";

  1744         }

  1745         StringBuilder sb = new StringBuilder();

  1746         while (e.getKind() != ElementKind.PACKAGE) {

  1747             if (sb.length() == 0) {

  1748                 sb.append(e.getSimpleName());

  1749             } else {

  1750                 sb.insert(0, '.');

  1751                 sb.insert(0, e.getSimpleName());

  1752             }

  1753             e = e.getEnclosingElement();

  1754         }

  1755         return sb.toString();

  1756     }

  1758     private String fqn(TypeMirror pt, Element relative) {

  1759         if (pt.getKind() == TypeKind.ERROR) {

  1760             final Elements eu = processingEnv.getElementUtils();

  1761             PackageElement pckg = eu.getPackageOf(relative);

  1762             return pckg.getQualifiedName() + "." + pt.toString();

  1763         }

  1764         return pt.toString();

  1765     }

  1767     private String checkType(Prprt p, boolean[] isModel, boolean[] isEnum, boolean[] isPrimitive) {

  1768         TypeMirror tm;

  1769         try {

  1770             String ret = p.typeName(processingEnv);

  1771             TypeElement e = processingEnv.getElementUtils().getTypeElement(ret);

  1772             if (e == null) {

  1773                 isModel[0] = true;

  1774                 isEnum[0] = false;

  1775                 isPrimitive[0] = false;

  1776                 return ret;

  1777             }

  1778             tm = e.asType();

  1779         } catch (MirroredTypeException ex) {

  1780             tm = ex.getTypeMirror();

  1781         }

  1782         tm = processingEnv.getTypeUtils().erasure(tm);

  1783         if (isPrimitive[0] = tm.getKind().isPrimitive()) {

  1784             isEnum[0] = false;

  1785             isModel[0] = false;

  1786             return tm.toString();

  1787         }

  1788         final Element e = processingEnv.getTypeUtils().asElement(tm);

  1789         if (e.getKind() == ElementKind.CLASS && tm.getKind() == TypeKind.ERROR) {

  1790             isModel[0] = true;

  1791             isEnum[0] = false;

  1792             return e.getSimpleName().toString();

  1793         }

  1795         final Model m = e == null ? null : e.getAnnotation(Model.class);

  1796         String ret;

  1797         if (m != null) {

  1798             ret = findPkgName(e) + '.' + m.className();

  1799             isModel[0] = true;

  1800             models.put(e, m.className());

  1801         } else if (findModelForMthd(e)) {

  1802             ret = ((TypeElement)e).getQualifiedName().toString();

  1803             isModel[0] = true;

  1804         } else {

  1805             ret = tm.toString();

  1806         }

  1807         TypeMirror enm = processingEnv.getElementUtils().getTypeElement("java.lang.Enum").asType();

  1808         enm = processingEnv.getTypeUtils().erasure(enm);

  1809         isEnum[0] = processingEnv.getTypeUtils().isSubtype(tm, enm);

  1810         return ret;

  1811     }

  1813     private static boolean findModelForMthd(Element clazz) {

  1814         if (clazz == null) {

  1815             return false;

  1816         }

  1817         for (Element e : clazz.getEnclosedElements()) {

  1818             if (e.getKind() == ElementKind.METHOD) {

  1819                 ExecutableElement ee = (ExecutableElement)e;

  1820                 if (

  1821                     ee.getSimpleName().contentEquals("modelFor") &&

  1822                     ee.getParameters().isEmpty()

  1823                 ) {

  1824                     return true;

  1825                 }

  1826             }

  1827         }

  1828         return false;

  1829     }

  1831     private void findParamNames(

  1832         Set<String> params, Element e, String url, String jsonParam, StringBuilder... both

  1833     ) {

  1834         int wasJSON = 0;

  1836         for (int pos = 0; ;) {

  1837             int next = url.indexOf('{', pos);

  1838             if (next == -1) {

  1839                 both[wasJSON].append('"')

  1840                     .append(url.substring(pos).replace("\"", "\\\""))

  1841                     .append('"');

  1842                 return;

  1843             }

  1844             int close = url.indexOf('}', next);

  1845             if (close == -1) {

  1846                 error("Unbalanced '{' and '}' in " + url, e);

  1847                 return;

  1848             }

  1849             final String paramName = url.substring(next + 1, close);

  1850             params.add(paramName);

  1851             if (paramName.equals(jsonParam) && !jsonParam.isEmpty()) {

  1852                 both[wasJSON].append('"')

  1853                     .append(url.substring(pos, next).replace("\"", "\\\""))

  1854                     .append('"');

  1855                 wasJSON = 1;

  1856             } else {

  1857                 both[wasJSON].append('"')

  1858                     .append(url.substring(pos, next).replace("\"", "\\\""))

  1859                     .append("\" + ").append(paramName).append(" + ");

  1860             }

  1861             pos = close + 1;

  1862         }

  1863     }

  1865     private static Prprt findPrprt(Prprt[] properties, String propName) {

  1866         for (Prprt p : properties) {

  1867             if (propName.equals(p.name())) {

  1868                 return p;

  1869             }

  1870         }

  1871         return null;

  1872     }

  1874     private boolean isPrimitive(String type) {

  1875         return

  1876             "int".equals(type) ||

  1877             "double".equals(type) ||

  1878             "long".equals(type) ||

  1879             "short".equals(type) ||

  1880             "byte".equals(type) ||

  1881             "char".equals(type) ||

  1882             "boolean".equals(type) ||

  1883             "float".equals(type);

  1884     }

  1886     private static Collection<String> findDerivedFrom(Map<String, Collection<String[]>> propsDeps, String derivedProp) {

  1887         Set<String> names = new HashSet<String>();

  1888         for (Map.Entry<String, Collection<String[]>> e : propsDeps.entrySet()) {

  1889             for (String[] pair : e.getValue()) {

  1890                 if (pair[0].equals(derivedProp)) {

  1891                     names.add(e.getKey());

  1892                     break;

  1893                 }

  1894             }

  1895         }

  1896         return names;

  1897     }

  1899     private Prprt[] createProps(Element e, Property[] arr) {

  1900         Prprt[] ret = Prprt.wrap(processingEnv, e, arr);

  1901         Prprt[] prev = verify.put(e, ret);

  1902         if (prev != null) {

  1903             error("Two sets of properties for ", e);

  1904         }

  1905         return ret;

  1906     }

  1908     private static String strip(String s) {

  1909         int indx = s.indexOf("__");

  1910         if (indx >= 0) {

  1911             return s.substring(0, indx);

  1912         } else {

  1913             return s;

  1914         }

  1915     }

  1917     private String findDataSpecified(ExecutableElement e, OnReceive onR) {

  1918         try {

  1919             return onR.data().getName();

  1920         } catch (MirroredTypeException ex) {

  1921             final TypeMirror tm = ex.getTypeMirror();

  1922             String name;

  1923             final Element te = processingEnv.getTypeUtils().asElement(tm);

  1924             if (te.getKind() == ElementKind.CLASS && tm.getKind() == TypeKind.ERROR) {

  1925                 name = te.getSimpleName().toString();

  1926             } else {

  1927                 name = tm.toString();

  1928             }

  1929             return "java.lang.Object".equals(name) ? null : name;

  1930         } catch (Exception ex) {

  1931             // fallback

  1932         }

  1934         AnnotationMirror found = null;

  1935         for (AnnotationMirror am : e.getAnnotationMirrors()) {

  1936             if (am.getAnnotationType().toString().equals(OnReceive.class.getName())) {

  1937                 found = am;

  1938             }

  1939         }

  1940         if (found == null) {

  1941             return null;

  1942         }

  1944         for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : found.getElementValues().entrySet()) {

  1945             ExecutableElement ee = entry.getKey();

  1946             AnnotationValue av = entry.getValue();

  1947             if (ee.getSimpleName().contentEquals("data")) {

  1948                 List<? extends Object> values = getAnnoValues(processingEnv, e, found);

  1949                 for (Object v : values) {

  1950                     String sv = v.toString();

  1951                     if (sv.startsWith("data = ") && sv.endsWith(".class")) {

  1952                         return sv.substring(7, sv.length() - 6);

  1953                     }

  1954                 }

  1955                 return "error";

  1956             }

  1957         }

  1958         return null;

  1959     }

  1961     static List<? extends Object> getAnnoValues(ProcessingEnvironment pe, Element e, AnnotationMirror am) {

  1962         try {

  1963             Class<?> trees = Class.forName("com.sun.tools.javac.api.JavacTrees");

  1964             Method m = trees.getMethod("instance", ProcessingEnvironment.class);

  1965             Object instance = m.invoke(null, pe);

  1966             m = instance.getClass().getMethod("getPath", Element.class, AnnotationMirror.class);

  1967             Object path = m.invoke(instance, e, am);

  1968             m = path.getClass().getMethod("getLeaf");

  1969             Object leaf = m.invoke(path);

  1970             m = leaf.getClass().getMethod("getArguments");

  1971             return (List) m.invoke(leaf);

  1972         } catch (Exception ex) {

  1973             return Collections.emptyList();

  1974         }

  1975     }

  1977     private static String findTargetId(Element e) {

  1978         for (AnnotationMirror m : e.getAnnotationMirrors()) {

  1979             if (m.getAnnotationType().toString().equals(Model.class.getName())) {

  1980                 for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entrySet : m.getElementValues().entrySet()) {

  1981                     ExecutableElement key = entrySet.getKey();

  1982                     AnnotationValue value = entrySet.getValue();

  1983                     if ("targetId()".equals(key.toString())) {

  1984                         return value.toString();

  1985                     }

  1986                 }

  1987             }

  1988         }

  1989         return null;

  1990     }

  1992     private static class Prprt {

  1993         private final Element e;

  1994         private final AnnotationMirror tm;

  1995         private final Property p;

  1997         public Prprt(Element e, AnnotationMirror tm, Property p) {

  1998             this.e = e;

  1999             this.tm = tm;

  2000             this.p = p;

  2001         }

  2003         String name() {

  2004             return p.name();

  2005         }

  2007         boolean array() {

  2008             return p.array();

  2009         }

  2011         boolean mutable() {

  2012             return p.mutable();

  2013         }

  2015         String typeName(ProcessingEnvironment env) {

  2016             RuntimeException ex;

  2017             try {

  2018                 return p.type().getName();

  2019             } catch (IncompleteAnnotationException e) {

  2020                 ex = e;

  2021             } catch (AnnotationTypeMismatchException e) {

  2022                 ex = e;

  2023             }

  2024             for (Object v : getAnnoValues(env, e, tm)) {

  2025                 String s = v.toString().replace(" ", "");

  2026                 if (s.startsWith("type=") && s.endsWith(".class")) {

  2027                     return s.substring(5, s.length() - 6);

  2028                 }

  2029             }

  2030             throw ex;

  2031         }

  2034         static Prprt[] wrap(ProcessingEnvironment pe, Element e, Property[] arr) {

  2035             if (arr.length == 0) {

  2036                 return new Prprt[0];

  2037             }

  2039             if (e.getKind() != ElementKind.CLASS) {

  2040                 throw new IllegalStateException("" + e.getKind());

  2041             }

  2042             TypeElement te = (TypeElement)e;

  2043             List<? extends AnnotationValue> val = null;

  2044             for (AnnotationMirror an : te.getAnnotationMirrors()) {

  2045                 for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : an.getElementValues().entrySet()) {

  2046                     if (entry.getKey().getSimpleName().contentEquals("properties")) {

  2047                         val = (List)entry.getValue().getValue();

  2048                         break;

  2049                     }

  2050                 }

  2051             }

  2052             if (val == null || val.size() != arr.length) {

  2053                 pe.getMessager().printMessage(Diagnostic.Kind.ERROR, "" + val, e);

  2054                 return new Prprt[0];

  2055             }

  2056             Prprt[] ret = new Prprt[arr.length];

  2057             BIG: for (int i = 0; i < ret.length; i++) {

  2058                 AnnotationMirror am = (AnnotationMirror)val.get(i).getValue();

  2059                 ret[i] = new Prprt(e, am, arr[i]);

  2061             }

  2062             return ret;

  2063         }

  2064     } // end of Prprt

  2066     private static final class GetSet {

  2067         final String name;

  2068         final String getter;

  2069         final String setter;

  2070         final String type;

  2071         final boolean readOnly;

  2072         GetSet(String name, String getter, String setter, String type, boolean readOnly) {

  2073             this.name = name;

  2074             this.getter = getter;

  2075             this.setter = setter;

  2076             this.type = type;

  2077             this.readOnly = readOnly;

  2078         }

  2079     }

  2081     @Override

  2082     public Iterable<? extends Completion> getCompletions(Element element, AnnotationMirror annotation, ExecutableElement member, String userText) {

  2083         final Level l = Level.FINE;

  2084         LOG.log(l, " element: {0}", element);

  2085         LOG.log(l, " annotation: {0}", annotation);

  2086         LOG.log(l, " member: {0}", member);

  2087         LOG.log(l, " userText: {0}", userText);

  2088         LOG.log(l, "str: {0}", annotation.getAnnotationType().toString());

  2089         if (annotation.getAnnotationType().toString().equals(OnReceive.class.getName())) {

  2090             if (member.getSimpleName().contentEquals("method")) {

  2091                 return Arrays.asList(

  2092                     methodOf("GET"),

  2093                     methodOf("POST"),

  2094                     methodOf("PUT"),

  2095                     methodOf("DELETE"),

  2096                     methodOf("HEAD"),

  2097                     methodOf("WebSocket")

  2098                 );

  2099             }

  2100         }

  2102         return super.getCompletions(element, annotation, member, userText);

  2103     }

  2105     private static final Completion methodOf(String method) {

  2106         ResourceBundle rb = ResourceBundle.getBundle("org.netbeans.html.json.impl.Bundle");

  2107         return Completions.of('"' + method + '"', rb.getString("MSG_Completion_" + method));

  2108     }

  2110     private boolean findOnError(ExecutableElement errElem, TypeElement te, String name, String className) {

  2111         String err = null;

  2112         METHODS:

  2113         for (Element e : te.getEnclosedElements()) {

  2114             if (e.getKind() != ElementKind.METHOD) {

  2115                 continue;

  2116             }

  2117             if (!e.getSimpleName().contentEquals(name)) {

  2118                 continue;

  2119             }

  2120             if (!e.getModifiers().contains(Modifier.STATIC)) {

  2121                 errElem = (ExecutableElement) e;

  2122                 err = "Would have to be static";

  2123                 continue;

  2124             }

  2125             ExecutableElement ee = (ExecutableElement) e;

  2126             TypeMirror excType = processingEnv.getElementUtils().getTypeElement(Exception.class.getName()).asType();

  2127             final List<? extends VariableElement> params = ee.getParameters();

  2128             boolean error = false;

  2129             if (params.size() != 2) {

  2130                 error = true;

  2131             } else {

  2132                 String firstType = params.get(0).asType().toString();

  2133                 int lastDot = firstType.lastIndexOf('.');

  2134                 if (lastDot != -1) {

  2135                     firstType = firstType.substring(lastDot + 1);

  2136                 }

  2137                 if (!firstType.equals(className)) {

  2138                     error = true;

  2139                 }

  2140                 if (!processingEnv.getTypeUtils().isAssignable(excType, params.get(1).asType())) {

  2141                     error = true;

  2142                 }

  2143             }

  2144             if (error) {

  2145                 errElem = (ExecutableElement) e;

  2146                 err = "Error method first argument needs to be " + className + " and second Exception";

  2147                 continue;

  2148             }

  2149             return true;

  2150         }

  2151         if (err == null) {

  2152             err = "Cannot find " + name + "(" + className + ", Exception) method in this class";

  2153         }

  2154         error(err, errElem);

  2155         return false;

  2156     }

  2158     private ExecutableElement findWrite(ExecutableElement computedPropElem, TypeElement te, String name, String className) {

  2159         String err = null;

  2160         METHODS:

  2161         for (Element e : te.getEnclosedElements()) {

  2162             if (e.getKind() != ElementKind.METHOD) {

  2163                 continue;

  2164             }

  2165             if (!e.getSimpleName().contentEquals(name)) {

  2166                 continue;

  2167             }

  2168             if (e.equals(computedPropElem)) {

  2169                 continue;

  2170             }

  2171             if (!e.getModifiers().contains(Modifier.STATIC)) {

  2172                 computedPropElem = (ExecutableElement) e;

  2173                 err = "Would have to be static";

  2174                 continue;

  2175             }

  2176             ExecutableElement ee = (ExecutableElement) e;

  2177             if (ee.getReturnType().getKind() != TypeKind.VOID) {

  2178                 computedPropElem = (ExecutableElement) e;

  2179                 err = "Write method has to return void";

  2180                 continue;

  2181             }

  2182             TypeMirror retType = computedPropElem.getReturnType();

  2183             final List<? extends VariableElement> params = ee.getParameters();

  2184             boolean error = false;

  2185             if (params.size() != 2) {

  2186                 error = true;

  2187             } else {

  2188                 String firstType = params.get(0).asType().toString();

  2189                 int lastDot = firstType.lastIndexOf('.');

  2190                 if (lastDot != -1) {

  2191                     firstType = firstType.substring(lastDot + 1);

  2192                 }

  2193                 if (!firstType.equals(className)) {

  2194                     error = true;

  2195                 }

  2196                 if (!processingEnv.getTypeUtils().isAssignable(retType, params.get(1).asType())) {

  2197                     error = true;

  2198                 }

  2199             }

  2200             if (error) {

  2201                 computedPropElem = (ExecutableElement) e;

  2202                 err = "Write method first argument needs to be " + className + " and second " + retType + " or Object";

  2203                 continue;

  2204             }

  2205             return ee;

  2206         }

  2207         if (err == null) {

  2208             err = "Cannot find " + name + "(" + className + ", value) method in this class";

  2209         }

  2210         error(err, computedPropElem);

  2211         return null;

  2212     }

  2214 }

author	Jaroslav Tulach <jtulach@netbeans.org>
	Mon, 22 Feb 2016 06:09:33 +0100
branch	NonMutable258088
changeset 1054	4c40ceb185e5
parent 1050	f18b6cc923d8
child 1055	c61d247f087a
permissions	-rw-r--r--